Installation manual

AT-1500 Plug and Play
24
Check cable schematics against the ones shown in Figure 3.
Figure 3: Usable and Unusable 10BASE-T Cable
Figure 4 shows where to find pin 1 on a standard RJ45.
Figure 4: Pin 1 Orientation on
1 TD+
2 TD-
3 RD+
4 N/C
5 N/C
6 RD-
7 N/C
8 N/C
TD+ 1
TD- 2
RD+ 3
N/C 4
N/C 5
RD- 6
N/C 7
N/C 8
1. Pair twisted as per level 3, 4 or 5
cable
1 TD+
2 TD-
3 RD+
4 N/C
5 N/C
6 RD-
7 N/C
8 N/C
TD+ 1
TD- 2
RD+ 3
N/C 4
N/C 5
RD- 6
N/C 7
N/C 8
1
1
This cable will not work for
10BASE-T. Note that 3 and 6 are
twisted, but are not a pair.
Pin 1